He alone_care of his mother for ten years after his father died young A .had taken B.has taken
问题描述：
He alone_care of his mother for ten years after his father died young A .had taken B.has taken
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答
选B,他的父亲死后到现在一直照顾,应用现在完成时.而且句子表示的不是过去的过去.